/*
 * Copyright (c) 2006-2007 Erin Catto http://www.gphysics.com
 *
 * This software is provided 'as-is', without any express or implied
 * warranty.  In no event will the authors be held liable for any damages
 * arising from the use of this software.
 * Permission is granted to anyone to use this software for any purpose,
 * including commercial applications, and to alter it and redistribute it
 * freely, subject to the following restrictions:
 * 1. The origin of this software must not be misrepresented; you must not
 * claim that you wrote the original software. If you use this software
 * in a product, an acknowledgment in the product documentation would be
 * appreciated but is not required.
 * 2. Altered source versions must be plainly marked as such, and must not be
 * misrepresented as being the original software.
 * 3. This notice may not be removed or altered from any source distribution.
 */

package org.box2dflash.collision {

	public class PairCallback {
		//virtual ~PairCallback() {}

		// This returns the new pair user data.
		public  function pairAdded(proxyUserData1:*, proxyUserData2:*):* {
			return null;
		};

		// This should free the pair's user data. In extreme circumstances, it is possible
		// this will be called with null pairUserData because the pair never existed.
		public  function pairRemoved(proxyUserData1:*, proxyUserData2:*, pairUserData:*):void {
		};
	}
}